Implement experimental bridge for kvm virtual machines

"function" is a bash builtin

.github/workflows/build-deploy.yml

@@ -0,0 +1,46 @@
+name: Build and Deploy docs
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: dependencies
+      run: sudo apt-get update && sudo apt-get install gcc-mingw-w64 make
+    - name: make
+      run: make
+    - name: artifact
+      uses: actions/upload-artifact@v3
+      with:
+        name: bridge
+        path: build
+
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Configure Git Credentials
+        run: |
+          git config user.name github-actions[bot]
+          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
+      - uses: actions/cache@v4
+        with:
+          key: mkdocs-material-${{ env.cache_id }}
+          path: .cache
+          restore-keys: |
+            mkdocs-material-
+      - run: pip install mkdocs-material
+      - run: mkdocs gh-deploy --force

.github/workflows/c-cpp.yml

@@ -1,24 +0,0 @@
-name: C/C++ CI
-
-on:
-  push:
-    branches: [ "master" ]
-  pull_request:
-    branches: [ "master" ]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: dependencies
-      run: sudo apt-get update && sudo apt-get install gcc-mingw-w64 make
-    - name: make
-      run: make
-    - name: artifact
-      uses: actions/upload-artifact@v3
-      with:
-        name: bridge
-        path: build

.gitignore

@@ -1,2 +1,4 @@
 *.o
 *.exe
+*.res
+*.elf

.vscode/c_cpp_properties.json

@@ -8,7 +8,18 @@
             "defines": [],
             "cStandard": "c17",
             "cppStandard": "gnu++17",
-            "intelliSenseMode": "windows-gcc-x86"
+            "intelliSenseMode": "windows-gcc-x64"
+        },
+        {
+            "name": "Linux",
+            "includePath": [
+                "${workspaceFolder}/**"
+            ],
+            "defines": [],
+            "cStandard": "c17",
+            "cppStandard": "gnu++17",
+            "intelliSenseMode": "linux-gcc-x64",
+            "compilerPath": "/usr/bin/gcc"
         }
     ],
     "version": 4

.vscode/settings.json

@@ -1,12 +1,3 @@
 {
-	"C_Cpp.default.compilerPath": "/usr/bin/i686-w64-mingw32-gcc",
+	"C_Cpp.default.compilerPath": "/usr/bin/x86_64-w64-mingw32-gcc",
-	"files.associations": {
-		"*.su": "tsv",
-		"thread": "cpp",
-		"bitset": "cpp",
-		"initializer_list": "cpp",
-		"windows.h": "c",
-		"namedpipeapi.h": "c",
-		"*.rh": "c"
-	}
 }

Makefile

@@ -2,23 +2,21 @@ C_SOURCES = $(shell find ./ -type f -name '*.c')
 C_OBJECTS = $(C_SOURCES:.c=.o)
 
 CFLAGS = -std=c17 -Wno-int-conversion
-LFLAGS =
+LFLAGS = -lgdi32
 
 # DBGFLAGS = -Wl,--export-all-symbols -g -O0 -ggdb3 -Wall
 
 all: build
 
-# This is valid only if this directory is a subdirectory of drive_c
-install: build
-	cp build/bridge.exe ../bridge.exe
-
 build: $(C_OBJECTS)
 	$(info Linking)
-	x86_64-w64-mingw32-gcc $(C_OBJECTS) $(LFLAGS) $(DBGFLAGS) -o build/bridge.exe
+	x86_64-w64-mingw32-windres bridge.rc -O coff -o bridge.res
+	x86_64-w64-mingw32-gcc $(C_OBJECTS) bridge.res $(LFLAGS) $(DBGFLAGS) -o build/bridge.exe
+	gcc kvm.c -o build/rpc-bridge.elf
 
 %.o: %.c
 	$(info Compiling $<)
 	x86_64-w64-mingw32-gcc $(CFLAGS) $(DBGFLAGS) -c $< -o $@
 
 clean:
-	rm -f $(C_OBJECTS) build/bridge.exe
+	rm -f $(C_OBJECTS) build/bridge.exe bridge.res

README.md

@@ -1,8 +1,8 @@
 # Discord RPC Bridge for Wine
 
-![GitHub](https://img.shields.io/github/license/EnderIce2/rpc-bridge)
+![GitHub License](https://img.shields.io/github/license/EnderIce2/rpc-bridge?style=for-the-badge)
-![GitHub All Releases](https://img.shields.io/github/downloads/EnderIce2/rpc-bridge/total)
+![GitHub Downloads (all assets, all releases)](https://img.shields.io/github/downloads/EnderIce2/rpc-bridge/total?style=for-the-badge)
-![GitHub release (latest by date)](https://img.shields.io/github/v/release/EnderIce2/rpc-bridge)
+![GitHub Release](https://img.shields.io/github/v/release/EnderIce2/rpc-bridge?style=for-the-badge)
 
 Simple bridge that allows you to use Discord Rich Presence with Wine games/software.
 
@@ -12,121 +12,64 @@ This bridge takes advantage of the Windows service implementation in Wine, elimi
 
 ---
 
-## Table of Contents
-
-- [Discord RPC Bridge for Wine](#discord-rpc-bridge-for-wine)
-	- [Table of Contents](#table-of-contents)
-	- [Installation \& Usage](#installation--usage)
-		- [Installing inside a prefix](#installing-inside-a-prefix)
-			- [Wine (~/.wine)](#wine-wine)
-			- [Lutris](#lutris)
-			- [Steam](#steam)
-		- [If you use Flatpak](#if-you-use-flatpak)
-	- [Run without installing the service](#run-without-installing-the-service)
-	- [About macOS](#about-macos)
-	- [Compiling from source](#compiling-from-source)
-	- [Command line arguments](#command-line-arguments)
-	- [Debugging](#debugging)
-	- [Demo](#demo)
-	- [Credits](#credits)
-
 ## Installation & Usage
 
-Installation will place `bridge.exe` to `C:\bridge.exe` (if it's not already there) and create a Windows service. This service will automatically start when the prefix is used.
+Installation will copy itself to `C:\windows\bridge.exe` and create a Windows service.  
-
+Logs are stored in `C:\windows\logs\bridge.log`.
-If you prefer not to use the service for any reason, please refer to the [Run without installing the service](#run-without-installing-the-service) section.
 
 #### Installing inside a prefix
 
 ##### Wine (~/.wine)
 
-- Open terminal in `build`
+- Double click `bridge.exe` and click `Install`.
-- Run `$ wine cmd` and `C:\> install.bat`
+    - ![gui](docs/assets/gui.png)
-	- ![wine install](imgs/wine_install.gif)
+- To remove, the same process can be followed, but click `Remove` instead.
-- To remove, run `C:\> remove.bat`
+
-	- ![wine remove](imgs/wine_remove.gif)
+*Note, an [extra step](https://github.com/EnderIce2/rpc-bridge?tab=readme-ov-file#macos) is needed on MacOS*
-- Note: Copying files are not required here.
 
 ##### Lutris
 
-- Right click on the game and select `Browse files`
+- Click on a game and select `Run EXE inside Wine prefix`.
-	- ![lutris browse](imgs/lutris_browse.gif)
+    - ![lutris](docs/assets/lutris.png)
-- Copy contents of `build` to the game's prefix `drive_c`
+- The same process can be followed as in Wine.
-	- ![lutris copy](imgs/lutris_copy.gif)
-- To install open the console
-	- ![lutris console](imgs/lutris_console.gif)
-- And run `C:\> install.bat` (make sure you are in `C:\`!)
-	- ![lutris install](imgs/lutris_install.gif)
 
 ##### Steam
 
-- Open [Protontricks](https://github.com/Matoking/protontricks) and select the game you want to install the bridge to
+- Right click on the game and select `Properties`.
-- Select `Select the default wineprefix`
+- Under `Set Launch Options`, add the following:
-- Select `Browse files` and copy contents of `build` to the game's prefix `drive_c`
+    - ![bridge.sh](docs/assets/steam_script.png "Set Launch Options to the path of the bridge.sh")
-- Select `Run a Wine cmd shell` and run `C:\> install.bat`
+- The `bridge.sh` script must be in the same directory as `bridge.exe`.
-	- If you are not in `C:\`, type `c:` and press enter
-- ![protontricks](imgs/steam_protontricks.png)
 
 #### If you use Flatpak
 
-- If you are running Steam, Lutris, etc. in a Flatpak, you will need to allow the bridge to access the `/run/user/1000/discord-ipc-0` file.
+- If you are running Steam, Lutris, etc in a Flatpak, you will need to allow the bridge to access the `/run/user/1000/discord-ipc-0` file.
 	- ##### By using [Flatseal](https://flathub.org/apps/details/com.github.tchx84.Flatseal)
 		- Add `xdg-run/discord-ipc-0` under `Filesystems` category
-		- ![flatseal](imgs/flatseal_permission.png)
+			- ![flatseal](docs/assets/flatseal_permission.png)
 	- ##### By using the terminal
 		- Per application
 			- `flatpak override --filesystem=xdg-run/discord-ipc-0 <flatpak app name>`
 		- Globally
 			- `flatpak override --user --filesystem=xdg-run/discord-ipc-0`
 
-## Run without installing the service
+##### MacOS
 
-If you prefer not to use the service, you can manually run `bridge.exe` within the Wine prefix.
+The steps for MacOS are almost the same, but due to the way `$TMPDIR` works, you will have to install a **LaunchAgent**.
-This method is compatible with both Wine and Lutris.
 
-In Lutris, you can achieve this by adding the path to `bridge.exe` in the `Executable` field under `Game options`. In `Arguments`  field, be sure to include the _Windows_ path to the game's executable.
+- Download the latest build from the [releases](https://github.com/EnderIce2/rpc-bridge/releases)
-Example:
+- Open the archive and make the `launchd.sh` script executable by doing: `chmod +x launchd.sh`
-- Without bridge:
+- To **install** the LaunchAgent, run `./launchd install` and to **remove** it simply run `./launchd remove`.
-	- Executable `/mnt/games/lutris/league-of-legends/drive_c/Riot Games/League of Legends/LeagueClient.exe`
-	- Arguments `--locale=en_US --launch-product=league_of_legends --launch-patchline=live`
-- With bridge:
-	- Executable `/mnt/games/lutris/league-of-legends/drive_c/bridge.exe`
-	- Arguments `"C:\Riot Games\League of Legends\LeagueClient.exe" --locale=en_US --launch-product=league_of_legends --launch-patchline=live`
 
-In Wine, all you need to do is run `bridge.exe`.
+The script will add a LaunchAgent to your user, that will symlink the `$TMPDIR` directory to `/tmp/rpc-bridge/tmpdir`.
 
-- When running the program manually without providing any arguments, it will simply initiate the bridge and wait indefinitely until it's closed.
+*Note: You will need to launch the `bridge.exe` file manually in Wine at least once for it to register and launch automatically the next time.*
-
-## About macOS
-
-The bridge works similarly on macOS as it does on Linux, but it can't be registered as a service due to TMPDIR limitations. macOS users must manually run `bridge.exe` when needed.
-
-To run `bridge.exe` on macOS, navigate to its directory in the terminal and execute `wine bridge.exe`. (or double click it in the Finder)
 
 ## Compiling from source
 
-- Install the `wine`, `x86_64-w64-mingw32-gcc` and `make` packages.
+- Install the `wine`, `gcc-mingw-w64` and `make` packages.
 - Open a terminal in the directory that contains this file and run `make`.
 - The compiled executable will be located in `build/bridge.exe`.
 
-## Command line arguments
-
-- `--install` - Installs the service
-- `--remove` - Removes the service
-- `--service` - Reserved for the service
-- `[Target Executable]` - Starts the bridge and the game
-	- Example: `bridge.exe "C:\Riot Games\League of Legends\LeagueClient.exe" --locale=en_US --launch-product=league_of_legends --launch-patchline=live`
-	- Note: The game executable must be enclosed in quotes. The rest of the arguments are passed to the target executable.
-
-## Debugging
-
-The bridge will write the logs in `C:\bridge.log`.
-
-## Demo
-
-![League of Legends running under Wine](imgs/lutris_lol.png)
-![Among Us running from Steam](imgs/steam_amongus.png)
-
 ## Credits
 
 This project is inspired by [wine-discord-ipc-bridge](https://github.com/0e4ef622/wine-discord-ipc-bridge).

bridge.c

@@ -4,6 +4,8 @@
 #include <assert.h>
 #include <stdio.h>
 
+#include "bridge.h"
+
 #define __linux_read 3
 #define __linux_write 4
 #define __linux_open 5
@@ -43,6 +45,8 @@
 		__attribute__((__always_inline__, __gnu_inline__))
 #define naked __attribute__((naked))
 
+#define BUFFER_LENGTH 2048
+
 typedef unsigned short sa_family_t;
 typedef char *caddr_t;
 typedef unsigned socklen_t;
@@ -62,7 +66,9 @@ void print(char const *fmt, ...);
 LPTSTR GetErrorMessage();
 extern BOOL RunningAsService;
 BOOL RetryNewConnection;
-BOOL IsLinux;
+OS_INFO OSInfo = {0};
+HANDLE hOut = NULL;
+HANDLE hIn = NULL;
 
 static force_inline int linux_syscall(int num,
 									  int arg1, int arg2, int arg3,
@@ -98,7 +104,7 @@ static naked int darwin_syscall(int num,
 
 static inline int sys_read(int fd, void *buf, size_t count)
 {
-	if (IsLinux)
+	if (OSInfo.IsLinux)
 		return linux_syscall(__linux_read, fd, buf, count, 0, 0, 0);
 	else
 		return darwin_syscall(__darwin_read, fd, buf, count, 0, 0, 0);
@@ -106,7 +112,7 @@ static inline int sys_read(int fd, void *buf, size_t count)
 
 static inline int sys_write(int fd, const void *buf, size_t count)
 {
-	if (IsLinux)
+	if (OSInfo.IsLinux)
 		return linux_syscall(__linux_write, fd, buf, count, 0, 0, 0);
 	else
 		return darwin_syscall(__darwin_write, fd, buf, count, 0, 0, 0);
@@ -114,7 +120,7 @@ static inline int sys_write(int fd, const void *buf, size_t count)
 
 static inline int sys_open(const char *pathname, int flags, int mode)
 {
-	if (IsLinux)
+	if (OSInfo.IsLinux)
 		return linux_syscall(__linux_open, pathname, flags, mode, 0, 0, 0);
 	else
 		return darwin_syscall(__darwin_open, pathname, flags, mode, 0, 0, 0);
@@ -122,7 +128,7 @@ static inline int sys_open(const char *pathname, int flags, int mode)
 
 static inline int sys_close(int fd)
 {
-	if (IsLinux)
+	if (OSInfo.IsLinux)
 		return linux_syscall(__linux_close, fd, 0, 0, 0, 0, 0);
 	else
 		return darwin_syscall(__darwin_close, fd, 0, 0, 0, 0, 0);
@@ -130,25 +136,25 @@ static inline int sys_close(int fd)
 
 static inline unsigned int *sys_mmap(unsigned int *addr, size_t length, int prot, int flags, int fd, off_t offset)
 {
-	assert(IsLinux);
+	assert(OSInfo.IsLinux);
 	return linux_syscall(__linux_mmap2, addr, length, prot, flags, fd, offset);
 }
 
 static inline int sys_munmap(unsigned int *addr, size_t length)
 {
-	assert(IsLinux);
+	assert(OSInfo.IsLinux);
 	return linux_syscall(__linux_munmap, addr, length, 0, 0, 0, 0);
 }
 
 static inline int sys_socketcall(int call, unsigned long *args)
 {
-	assert(IsLinux);
+	assert(OSInfo.IsLinux);
 	return linux_syscall(__linux_socketcall, call, args, 0, 0, 0, 0);
 }
 
 static inline int sys_socket(int domain, int type, int protocol)
 {
-	if (IsLinux)
+	if (OSInfo.IsLinux)
 		return linux_syscall(__linux_socket, domain, type, protocol, 0, 0, 0);
 	else
 		return darwin_syscall(__darwin_socket, domain, type, protocol, 0, 0, 0);
@@ -156,12 +162,13 @@ static inline int sys_socket(int domain, int type, int protocol)
 
 static inline int sys_connect(int s, caddr_t name, socklen_t namelen)
 {
-	if (IsLinux)
+	if (OSInfo.IsLinux)
 		return linux_syscall(__linux_connect, s, name, namelen, 0, 0, 0);
 	else
 		return darwin_syscall(__darwin_connect, s, name, namelen, 0, 0, 0);
 }
 
+void *environStr = NULL;
 char *native_getenv(const char *name)
 {
 	static char lpBuffer[512];
@@ -169,7 +176,7 @@ char *native_getenv(const char *name)
 	if (ret != 0)
 		return lpBuffer;
 
-	if (!IsLinux)
+	if (!OSInfo.IsLinux)
 	{
 		char *value = getenv(name);
 		if (value == NULL)
@@ -188,24 +195,23 @@ char *native_getenv(const char *name)
 		return value;
 	}
 
-	/* I hope the 0x10000 is okay */
+	/* I hope the 0x20000 is okay */
-	void *environStr = sys_mmap(0x10000, 4096, PROT_READ | PROT_WRITE,
+	if (environStr == NULL)
-								MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0);
-	if (environStr == MAP_FAILED)
 	{
-		print("Failed to allocate environ string: %d\n", (intptr_t)environStr);
+		environStr = sys_mmap(0x20000, 4096, PROT_READ | PROT_WRITE,
-		return NULL;
+							  MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0);
+		print("Allocated 4096 bytes at %#lx\n", environStr);
 	}
 
 	if ((uintptr_t)environStr > 0x7effffff)
-		print("Warning: environStr %p is above 2GB\n", environStr);
+		print("Warning: environStr %#lx is above 2GB\n", environStr);
 
 	const char *linux_environ = "/proc/self/environ";
 	memcpy(environStr, linux_environ, strlen(linux_environ) + 1);
 
 	int fd = sys_open(environStr, O_RDONLY, 0);
 
-	sys_munmap(environStr, 4096);
+	// sys_munmap(environStr, 4096);
 	if (fd < 0)
 	{
 		print("Failed to open /proc/self/environ: %d\n", fd);
@@ -247,17 +253,36 @@ void ConnectToSocket(int fd)
 {
 	print("Connecting to socket\n");
 	const char *runtime;
-	if (IsLinux)
+	if (OSInfo.IsLinux)
 		runtime = native_getenv("XDG_RUNTIME_DIR");
-	else
+	else if (OSInfo.IsDarwin)
+	{
 		runtime = native_getenv("TMPDIR");
 		if (runtime == NULL)
 		{
-		print("IPC directory not set\n");
+			runtime = "/tmp/rpc-bridge/tmpdir";
-		if (!RunningAsService)
+			print("IPC directory not set, fallback to /tmp/rpc-bridge/tmpdir\n");
-			MessageBox(NULL, "IPC directory not set",
+
-					   "Environment variable not set",
+			// Check if the directory exists
-					   MB_OK | MB_ICONSTOP);
+			DWORD dwAttrib = GetFileAttributes(runtime);
+			if (dwAttrib == INVALID_FILE_ATTRIBUTES || !(dwAttrib & FILE_ATTRIBUTE_DIRECTORY))
+			{
+				print("IPC directory does not exist: %s. If you're on MacOS, see the github guide on how to install the launchd service.\n", runtime);
+				// Handle the case where the directory doesn't exist
+				// For example, create the directory
+
+				int result = MessageBox(NULL, "IPC directory does not exist\nDo you want to open the installation guide?",
+										"Directory not found",
+										MB_YESNO | MB_ICONSTOP);
+				if (result == IDYES)
+					ShellExecute(NULL, "open", "https://enderice2.github.io/rpc-bridge/installation.html#macos", NULL, NULL, SW_SHOWNORMAL);
+				ExitProcess(1);
+			}
+		}
+	}
+	else
+	{
+		print("Unsupported OS\n");
 		ExitProcess(1);
 	}
 
@@ -284,7 +309,7 @@ void ConnectToSocket(int fd)
 
 		print("Connecting to %s\n", pipePath);
 
-		if (IsLinux)
+		if (OSInfo.IsLinux)
 		{
 			unsigned long socketArgs[] = {
 				(unsigned long)fd,
@@ -312,7 +337,6 @@ void ConnectToSocket(int fd)
 	}
 }
 
-HANDLE hOut = NULL;
 void PipeBufferInThread(LPVOID lpParam)
 {
 	bridge_thread *bt = (bridge_thread *)lpParam;
@@ -321,7 +345,7 @@ void PipeBufferInThread(LPVOID lpParam)
 	int EOFCount = 0;
 	while (TRUE)
 	{
-		char buffer[1024];
+		char buffer[BUFFER_LENGTH];
 		int read = sys_read(bt->fd, buffer, sizeof(buffer));
 
 		if (unlikely(read < 0))
@@ -416,7 +440,7 @@ void PipeBufferOutThread(LPVOID lpParam)
 		  bt->fd, bt->hPipe);
 	while (TRUE)
 	{
-		char buffer[1024];
+		char buffer[BUFFER_LENGTH];
 		DWORD dwRead;
 
 		if (unlikely(!ReadFile(bt->hPipe, buffer, sizeof(buffer),
@@ -463,6 +487,162 @@ void PipeBufferOutThread(LPVOID lpParam)
 	}
 }
 
+void COMPipeBufferInThread(LPVOID lpParam)
+{
+	bridge_thread *bt = (bridge_thread *)lpParam;
+	print("COM In thread started using COM port and pipe %#x\n", bt->hPipe);
+
+	HANDLE hComPort = CreateFile("\\\\.\\COM2", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
+	if (hComPort == INVALID_HANDLE_VALUE)
+	{
+		print("Failed to open COM2 port: %s\n", GetErrorMessage());
+		return;
+	}
+
+	int EOFCount = 0;
+	while (TRUE)
+	{
+		char buffer[BUFFER_LENGTH];
+		DWORD bytesRead;
+
+		if (!ReadFile(hComPort, buffer, sizeof(buffer), &bytesRead, NULL))
+		{
+			print("Failed to read from COM2 port: %s\n", GetErrorMessage());
+			Sleep(1000);
+			continue;
+		}
+
+		if (EOFCount > 4)
+		{
+			print("EOF count exceeded\n");
+			RetryNewConnection = TRUE;
+			TerminateThread(hOut, 0);
+			break;
+		}
+
+		if (bytesRead == 0)
+		{
+			print("EOF\n");
+			Sleep(1000);
+			EOFCount++;
+			continue;
+		}
+		EOFCount = 0;
+
+		print("Reading %d bytes from COM2 port: \"", bytesRead);
+		for (DWORD i = 0; i < bytesRead; i++)
+			print("%c", buffer[i]);
+		print("\"\n");
+
+		DWORD dwWritten;
+		if (!WriteFile(bt->hPipe, buffer, bytesRead, &dwWritten, NULL))
+		{
+			if (GetLastError() == ERROR_BROKEN_PIPE)
+			{
+				RetryNewConnection = TRUE;
+				print("In Broken pipe\n");
+				break;
+			}
+
+			print("Failed to write to pipe: %s\n", GetErrorMessage());
+			Sleep(1000);
+			continue;
+		}
+
+		while (dwWritten < bytesRead)
+		{
+			int last_written = dwWritten;
+			if (!WriteFile(bt->hPipe, buffer + dwWritten, bytesRead - dwWritten, &dwWritten, NULL))
+			{
+				if (GetLastError() == ERROR_BROKEN_PIPE)
+				{
+					RetryNewConnection = TRUE;
+					print("In Broken pipe\n");
+					break;
+				}
+
+				print("Failed to write to pipe: %s\n", GetErrorMessage());
+				Sleep(1000);
+				continue;
+			}
+
+			if (last_written == dwWritten)
+			{
+				print("Failed to write to pipe: %s\n", GetErrorMessage());
+				Sleep(1000);
+				continue;
+			}
+		}
+	}
+
+	CloseHandle(hComPort);
+}
+
+void COMPipeBufferOutThread(LPVOID lpParam)
+{
+	bridge_thread *bt = (bridge_thread *)lpParam;
+	print("COM Out thread started using COM port and pipe %#x\n", bt->hPipe);
+
+	HANDLE hComPort = CreateFile("\\\\.\\COM2", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
+	if (hComPort == INVALID_HANDLE_VALUE)
+	{
+		print("Failed to open COM2 port: %s\n", GetErrorMessage());
+		return;
+	}
+
+	while (TRUE)
+	{
+		char buffer[BUFFER_LENGTH];
+		DWORD dwRead;
+
+		if (!ReadFile(bt->hPipe, buffer, sizeof(buffer), &dwRead, NULL))
+		{
+			if (GetLastError() == ERROR_BROKEN_PIPE)
+			{
+				RetryNewConnection = TRUE;
+				print("Out Broken pipe\n");
+				break;
+			}
+
+			print("Failed to read from pipe: %s\n", GetErrorMessage());
+			Sleep(1000);
+			continue;
+		}
+
+		print("Writing %d bytes to COM2 port: \"", dwRead);
+		for (DWORD i = 0; i < dwRead; i++)
+			print("%c", buffer[i]);
+		print("\"\n");
+
+		DWORD bytesWritten;
+		if (!WriteFile(hComPort, buffer, dwRead, &bytesWritten, NULL))
+		{
+			print("Failed to write to COM2 port: %s\n", GetErrorMessage());
+			continue;
+		}
+
+		while (bytesWritten < dwRead)
+		{
+			int last_written = bytesWritten;
+			if (!WriteFile(hComPort, buffer + bytesWritten, dwRead - bytesWritten, &bytesWritten, NULL))
+			{
+				print("Failed to write to COM2 port: %s\n", GetErrorMessage());
+				Sleep(1000);
+				continue;
+			}
+
+			if (last_written == bytesWritten)
+			{
+				print("Failed to write to COM2 port: %s\n", GetErrorMessage());
+				Sleep(1000);
+				continue;
+			}
+		}
+	}
+
+	CloseHandle(hComPort);
+}
+
 void CreateBridge()
 {
 	LPCTSTR lpszPipename = TEXT("\\\\.\\pipe\\discord-ipc-0");
@@ -487,7 +667,7 @@ NewConnection:
 		CreateNamedPipe("\\\\.\\pipe\\discord-ipc-0",
 						PIPE_ACCESS_DUPLEX,
 						PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT,
-						1, 1024, 1024, 0, NULL);
+						PIPE_UNLIMITED_INSTANCES, BUFFER_LENGTH, BUFFER_LENGTH, 0, NULL);
 
 	if (hPipe == INVALID_HANDLE_VALUE)
 	{
@@ -516,7 +696,49 @@ NewConnection:
 	print("Pipe connected\n");
 
 	int fd;
-	if (IsLinux)
+	if (!OSInfo.IsWine)
+	{
+		print("Running on Windows\n");
+		/* KVM, send 0xBB1569 and wait with timeout (TODO) for response 0xB41D6E */
+
+		print("Trying \\\\.\\COM2\n");
+		HANDLE hComPort = CreateFile("\\\\.\\COM2", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
+		assert(hComPort != INVALID_HANDLE_VALUE);
+		DWORD dwWritten;
+		print("Writing to COM port\n");
+		char buffer[4] = "\x69\x15\xBB";
+		assert(WriteFile(hComPort, buffer, sizeof(buffer), &dwWritten, NULL));
+		print("Wrote %d bytes to COM port\n", dwWritten);
+		DWORD dwRead;
+		print("Reading from COM port\n");
+		assert(ReadFile(hComPort, buffer, sizeof(buffer), &dwRead, NULL));
+		print("Read %d bytes from COM port\n", dwRead);
+
+		if (dwRead != 4 || memcmp(buffer, "\x6E\x1D\xB4", 4) != 0)
+		{
+			CloseHandle(hComPort);
+			print("Failed to connect to COM2\n");
+			return;
+		}
+
+		CloseHandle(hComPort);
+		print("Connected to COM2\n");
+
+		bridge_thread bt = {0, hPipe};
+
+		hIn = CreateThread(NULL, 0,
+						   (LPTHREAD_START_ROUTINE)COMPipeBufferInThread,
+						   (LPVOID)&bt,
+						   0, NULL);
+
+		hOut = CreateThread(NULL, 0,
+							(LPTHREAD_START_ROUTINE)COMPipeBufferOutThread,
+							(LPVOID)&bt,
+							0, NULL);
+	}
+	else
+	{
+		if (OSInfo.IsLinux)
 		{
 			unsigned long socketArgs[] = {
 				(unsigned long)AF_UNIX,
@@ -543,7 +765,7 @@ NewConnection:
 
 		bridge_thread bt = {fd, hPipe};
 
-	HANDLE hIn = CreateThread(NULL, 0,
+		hIn = CreateThread(NULL, 0,
 						   (LPTHREAD_START_ROUTINE)PipeBufferInThread,
 						   (LPVOID)&bt,
 						   0, NULL);
@@ -552,6 +774,10 @@ NewConnection:
 							(LPTHREAD_START_ROUTINE)PipeBufferOutThread,
 							(LPVOID)&bt,
 							0, NULL);
+	}
+
+	print("Created in thread %#lx\n", hIn);
+	print("Created out thread %#lx\n", hOut);
 
 	if (hIn == NULL || hOut == NULL)
 	{
@@ -581,6 +807,7 @@ NewConnection:
 			print("Failed to terminate thread: %s\n",
 				  GetErrorMessage());
 
+		if (OSInfo.IsWine)
 			sys_close(fd);
 		CloseHandle(hOut);
 		CloseHandle(hIn);

bridge.h

@@ -0,0 +1,13 @@
+#ifndef _BRIDGE_H
+#define _BRIDGE_H
+
+#include <windows.h>
+
+typedef struct _OS_INFO
+{
+	BOOL IsLinux;
+	BOOL IsDarwin;
+	BOOL IsWine;
+} OS_INFO;
+
+#endif // _BRIDGE_H

bridge.manifest

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+<assemblyIdentity
+	version="1.0.0.0"
+	processorArchitecture="amd64"
+	name="EnderIce2.rpc-bridge"
+	type="win32"
+/>
+<description>Simple bridge that allows you to use Discord Rich Presence with Wine games/software.</description>
+<dependency>
+	<dependentAssembly>
+		<assemblyIdentity
+			type="win32"
+			name="Microsoft.Windows.Common-Controls"
+			version="6.0.0.0"
+			processorArchitecture="*"
+			publicKeyToken="6595b64144ccf1df"
+			language="*"
+		/>
+	</dependentAssembly>
+</dependency>
+<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+	<security>
+		<requestedPrivileges>
+			<requestedExecutionLevel
+				level="asInvoker"
+				uiAccess="false"
+			/>
+		</requestedPrivileges>
+	</security>
+</trustInfo>
+</assembly>

bridge.rc

@@ -0,0 +1,53 @@
+#include <windef.h>
+#include <winuser.h>
+#include <winresrc.h>
+
+#include "resource.h"
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION     VER_VERSION
+PRODUCTVERSION  VER_VERSION
+FILEFLAGSMASK   VS_FFI_FILEFLAGSMASK
+FILEOS          VOS_NT_WINDOWS32
+FILETYPE        VFT_APP
+FILESUBTYPE     VFT2_UNKNOWN
+BEGIN
+	BLOCK "StringFileInfo"
+	BEGIN
+		BLOCK "040904E4"
+		BEGIN
+			VALUE "FileDescription",  "Simple bridge that allows you to use Discord Rich Presence with Wine games/software."
+			VALUE "FileVersion",      VER_VERSION_STR
+			VALUE "InternalName",     "bridge"
+			VALUE "LegalCopyright",   "Copyright (c) 2024 EnderIce2"
+			VALUE "OriginalFilename", "bridge.exe"
+			VALUE "ProductName",      "rpc-bridge"
+			VALUE "ProductVersion",   VER_VERSION_STR
+		END
+	END
+
+	BLOCK "VarFileInfo"
+	BEGIN
+		VALUE "Translation", 0x409, 1252
+	END
+END
+
+IDR_MAINMENU MENU
+BEGIN
+	POPUP "&View"
+	BEGIN
+		MENUITEM "&Log", IDM_VIEW_LOG
+	END
+	POPUP "&Help"
+	BEGIN
+		MENUITEM "&Documentation", IDM_HELP_DOCUMENTATION
+		MENUITEM "&License", IDM_HELP_LICENSE
+		MENUITEM "&About", IDM_HELP_ABOUT
+	END
+END
+
+IDR_LICENSE_TXT RCDATA "LICENSE"
+
+IDI_ICON_128 ICON "bridge.ico"
+
+CREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST bridge.manifest

build/launchd.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+
+# This script is used to create a LaunchAgent on MacOS, to support the service functionality.
+# Usage: ./launchd.sh (install|remove)
+
+SYMLINK=/tmp/rpc-bridge/tmpdir
+LOCATION=~/Library/Application\ Support/rpc-bridge
+SCRIPT=$LOCATION/rpc-bridge
+AGENT=~/Library/LaunchAgents/com.enderice2.rpc-bridge.plist
+
+function install() {
+    # Directories
+    if [ ! -d "$SYMLINK" ]; then
+        mkdir -p "$SYMLINK"
+    fi
+    if [ ! -d "$LOCATION" ]; then
+        mkdir -p "$LOCATION"
+    fi
+
+    # Link script
+    if [ -f "$SCRIPT" ]; then
+        rm -f "$SCRIPT"
+    fi
+    echo "#!/bin/bash
+TARGET_DIR=/tmp/rpc-bridge/tmpdir
+if [ ! -d "\$TARGET_DIR" ]; then
+    mkdir -p "\$TARGET_DIR"
+fi
+rm -rf "\$TARGET_DIR"
+ln -s "\$TMPDIR" "\$TARGET_DIR"" > "$SCRIPT"
+    chmod +x "$SCRIPT"
+
+    # LaunchAgent
+    if [ -f "$AGENT" ]; then
+        rm -f "$AGENT"
+    fi
+    echo "<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST File Format//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+    <dict>
+        <key>Label</key>
+        <string>com.enderice2.rpc-bridge</string>
+        <key>ProgramArguments</key>
+        <array>
+            <string>$SCRIPT</string>
+        </array>
+        <key>RunAtLoad</key>
+        <true />
+    </dict>
+</plist>" > "$AGENT"
+    launchctl load "$AGENT"
+    echo "LaunchAgent has been installed."
+}
+
+function remove() {
+    rm -f "$SYMLINK"
+    rm -f "$SCRIPT"
+    rmdir "$LOCATION"
+    if [ -f "$AGENT" ]; then
+        launchctl unload "$AGENT"
+    fi
+    rm -f "$AGENT"
+    echo "LaunchAgent has been removed."
+}
+
+# CLI
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 (install|remove)"
+    exit 1
+fi
+
+case $1 in
+    install)
+        install
+    ;;
+    remove)
+        remove
+    ;;
+    *)
+        echo "Invalid argument. Please use 'install' or 'remove'."
+        exit 1
+    ;;
+esac

docs/index.md

@@ -0,0 +1,33 @@
+# Discord RPC Bridge for Wine
+
+![GitHub License](https://img.shields.io/github/license/EnderIce2/rpc-bridge?style=for-the-badge)
+![GitHub Downloads (all assets, all releases)](https://img.shields.io/github/downloads/EnderIce2/rpc-bridge/total?style=for-the-badge)
+![GitHub Release](https://img.shields.io/github/v/release/EnderIce2/rpc-bridge?style=for-the-badge)
+![GitHub Pre-Release](https://img.shields.io/github/v/release/EnderIce2/rpc-bridge?include_prereleases&style=for-the-badge&label=pre-release)
+
+Simple bridge that allows you to use Discord Rich Presence with Wine games/software on Linux/macOS.
+
+[Download latest release](https://github.com/EnderIce2/rpc-bridge/releases/latest/download/bridge.zip "Recommended"){ .md-button .md-button--primary }
+[Download latest pre-release](https://github.com/EnderIce2/rpc-bridge/releases "Unstable builds with experimental features"){ .md-button }
+<!-- [Download latest build](https://github.com/EnderIce2/rpc-bridge/actions "Builds from the latest commits, here be dragons!"){ .md-button } -->
+
+Works by running a small program in the background that creates a [named pipe](https://learn.microsoft.com/en-us/windows/win32/ipc/named-pipes) `\\.\pipe\discord-ipc-0` inside the prefix and forwards all data to the pipe `/run/user/1000/discord-ipc-0`.
+
+This bridge takes advantage of the Windows service implementation in Wine, eliminating the need to run it manually.
+
+These docs are for the latest stable release.  
+For v1.0, see [the original README](https://github.com/EnderIce2/rpc-bridge/blob/v1.0/README.md).
+
+---
+
+## Examples
+
+![lol](assets/lutris_lol.png "League Of Legends running under Wine using Lutris"){ width="600" }
+
+![among us](assets/steam_amongus.png "Among Us on Steam"){ width="600" }
+
+## Credits
+
+This project is inspired by [wine-discord-ipc-bridge](https://github.com/0e4ef622/wine-discord-ipc-bridge).
+
+---

docs/installation.md

@@ -0,0 +1,111 @@
+# Installation
+
+Installation will copy itself to `C:\windows\bridge.exe` and create a Windows service.  
+Logs are stored in `C:\windows\logs\bridge.log`.
+
+## Installing inside a prefix
+
+### Wine (~/.wine)
+
+- Double click `bridge.exe` and click `Install`.
+    - ![gui](assets/gui.png "rpc-bridge GUI")
+- To remove, the same process can be followed, but click `Remove` instead.
+
+### Lutris
+
+- Click on a game and select `Run EXE inside Wine prefix`.
+    - ![lutris](assets/lutris.png "Lutris")
+- The same process can be followed as in Wine.
+
+### Steam
+
+There are two ways to install the bridge on Steam.
+
+#### Using bridge.sh[^1]
+
+This method is recommended because it's easier to manage.
+
+- Right click on the game and select `Properties`.
+- Under `Set Launch Options`, add the following:
+    - ![bridge.sh](assets/steam_script.png "Set Launch Options to the path of the bridge.sh")  
+<sup><sub>Of course, you need to replace `/path/to/bridge.sh` with the actual path to the script.</sub></sup>
+
+!!! info "Note"
+
+    `bridge.sh` must be in the same directory as `bridge.exe`.
+
+#### Using Protontricks
+
+- Open [Protontricks](https://github.com/Matoking/protontricks) and select the game you want to install the bridge to.
+- Select `Select the default wineprefix`
+- Select `Browse files` and copy contents of `build` to the game's prefix `drive_c`
+- Select `Run a Wine cmd shell` and run `C:\> install.bat`
+    - If you are not in `C:\`, type `c:` and press enter
+
+![protontricks](assets/steam_protontricks.png "If use have the option for 'Run an arbitrary executable (.exe/.msi/.msu), use it instead!")
+
+!!! warning "If you use Flatpak"
+
+    If you are running Steam, Lutris, etc in a Flatpak, you will need to allow the bridge to access the `/run/user/1000/discord-ipc-0` file.
+
+    You can do this by using [Flatseal](https://flathub.org/apps/details/com.github.tchx84.Flatseal) or the terminal.
+
+    === "Flatseal"
+    
+        Add `xdg-run/discord-ipc-0` under `Filesystems` category  
+        ![flatseal](assets/flatseal_permission.png)
+
+    === "Terminal"
+
+        - Per application
+            - `flatpak override --filesystem=xdg-run/discord-ipc-0 <flatpak app name>`
+        - Globally
+            - `flatpak override --user --filesystem=xdg-run/discord-ipc-0`
+
+## macOS
+
+The steps for MacOS are almost the same, but due to the way `$TMPDIR` works, you will have to install a **LaunchAgent**.
+
+- Download the latest build from the [releases](https://github.com/EnderIce2/rpc-bridge/releases)
+- Open the archive and make the `launchd.sh` script executable by doing: `chmod +x launchd.sh`
+- To **install** the LaunchAgent, run `./launchd install` and to **remove** it simply run `./launchd remove`.
+
+The script will add a LaunchAgent to your user, that will symlink the `$TMPDIR` directory to `/tmp/rpc-bridge/tmpdir`.
+
+!!! info "Note"
+    You will need to launch the `bridge.exe` file manually in Wine at least once for it to register and launch automatically the next time.
+
+## Run without installing the service
+
+If you prefer not to use the service, you can manually run `bridge.exe` within the Wine prefix.  
+This method is compatible with both Wine and Lutris.
+
+In Lutris, you can achieve this by adding the path to `bridge.exe` in the `Executable` field under `Game options`. In `Arguments` field, be sure to include the _Windows_ path to the game's executable.
+
+=== "Without bridge"
+
+    ```
+        Executable
+            /mnt/games/lutris/league-of-legends/drive_c/Riot Games/League of Legends/LeagueClient.exe
+        Arguments
+            --locale=en_US --launch-product=league_of_legends --launch-patchline=live
+    ```
+
+=== "With bridge"
+
+    ```
+        Executable
+            /mnt/games/lutris/league-of-legends/drive_c/bridge.exe
+        Arguments
+            "C:\Riot Games\League of Legends\LeagueClient.exe" --locale=en_US --launch-product=league_of_legends --launch-patchline=live
+    ```
+
+In Wine, all you need to do is run `bridge.exe` and select `Start`.
+
+## Compiling from source
+
+- Install the `wine`, `gcc-mingw-w64` and `make` packages.
+- Open a terminal in the directory that contains this file and run `make`.
+- The compiled executable will be located in `build/bridge.exe`.
+
+[^1]: As requested [here](https://github.com/EnderIce2/rpc-bridge/issues/2).

docs/usage.md

@@ -0,0 +1,35 @@
+# Usage
+
+## GUI
+
+- When running the program manually without providing any arguments it will show a GUI.
+![gui](assets/gui.png "rpc-bridge GUI")
+- `Start` will start the service without installing itself.
+- `Install` will install the service.
+- `Remove` will uninstall the service.
+
+## Commands
+
+- `--help` Show help message
+    - This will show the help message
+
+- `--version` Show version
+    - This will show the version of the program
+
+- `--install` Install the service
+    - This will copy the binary to `C:\windows\bridge.exe` and register it as a service
+
+- `--uninstall` Uninstall the service
+    - This will remove the service and delete `C:\windows\bridge.exe`
+
+- `--steam` Reserved for Steam
+    - This will start the service and exit (used with `bridge.sh`)
+
+- `--no-service` Do not run as service
+    - (only for `--steam`)
+
+- `--service` Reserved for service
+    - Reserved
+
+- `--rpc <dir>` Set RPC_PATH environment variable
+    - This is used to specify the directory where `discord-ipc-0` is located

gui.c

@@ -1,8 +1,12 @@
+#include <windowsx.h>
 #include <windows.h>
 #include <winuser.h>
 #include <assert.h>
 #include <stdio.h>
 
+#include "bridge.h"
+#include "resource.h"
+
 /**
  * The entire code could be better written, but at least it works.
  *
@@ -14,26 +18,40 @@ void print(char const *fmt, ...);
 void InstallService(int ServiceStartType, LPCSTR Path);
 void RemoveService();
 void CreateBridge();
-extern BOOL IsLinux;
+extern OS_INFO OSInfo;
+extern char *logFilePath;
 
 HWND hwnd = NULL;
+HANDLE hBridge = NULL;
+extern HANDLE hOut;
+extern HANDLE hIn;
 
+BOOL IsAlreadyRunning = FALSE;
 VOID HandleStartButton(BOOL Silent)
 {
-	if (!IsLinux)
+	if (IsAlreadyRunning)
 	{
-		ShowWindow(hwnd, SW_MINIMIZE);
+		HWND item = GetDlgItem(hwnd, 4);
-		CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)CreateBridge,
+		SetWindowText(item, "Do you want to start, install or remove the bridge?");
-					 NULL, 0, NULL);
+		RedrawWindow(item, NULL, NULL, RDW_ERASE | RDW_INVALIDATE | RDW_FRAME | RDW_ALLCHILDREN);
-
+		item = GetDlgItem(hwnd, /* Start Button */ 1);
-		HWND item = GetDlgItem(hwnd, /* Start Button */ 1);
+		Button_SetText(item, "&Start");
 		EnableWindow(item, FALSE);
-		item = GetDlgItem(hwnd, 4);
+		RedrawWindow(item, NULL, NULL, RDW_ERASE | RDW_INVALIDATE | RDW_FRAME | RDW_ALLCHILDREN);
-		SetWindowText(item, "Bridge is running...");
+
+		print("Killing %#x, %#lx and waiting for %#lx\n", hIn, hOut, hBridge);
+		if (hIn != NULL)
+			TerminateThread(hIn, 0);
+		if (hOut != NULL)
+			TerminateThread(hOut, 0);
+		WaitForSingleObject(hBridge, INFINITE);
+
+		EnableWindow(item, TRUE);
+		IsAlreadyRunning = FALSE;
 		return;
 	}
 
-	SC_HANDLE hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+	SC_HANDLE hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT);
 	if (hSCManager == NULL)
 	{
 		print("OpenSCManager failed: %s\n", GetErrorMessage());
@@ -44,7 +62,19 @@ VOID HandleStartButton(BOOL Silent)
 									   SERVICE_QUERY_CONFIG | SERVICE_CHANGE_CONFIG | SERVICE_START);
 	if (schService == NULL)
 	{
-		print("OpenService failed: %s\n", GetErrorMessage());
+		print("Service doesn't exist: %s\n", GetErrorMessage());
+
+		/* Service doesn't exist; running without any service */
+
+		hBridge = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)CreateBridge,
+							   NULL, 0, NULL);
+
+		HWND item = GetDlgItem(hwnd, /* Start Button */ 1);
+		Button_SetText(item, "&Stop");
+		item = GetDlgItem(hwnd, 4);
+		SetWindowText(item, "Bridge is running...");
+		IsAlreadyRunning = TRUE;
+		ShowWindow(hwnd, SW_MINIMIZE);
 		return;
 	}
 
@@ -75,6 +105,7 @@ VOID HandleStartButton(BOOL Silent)
 	CloseServiceHandle(hSCManager);
 	if (Silent == FALSE)
 		MessageBox(NULL, "Bridge service started successfully", "Info", MB_OK);
+	print("Bridge service started successfully\n");
 }
 
 VOID HandleInstallButton()
@@ -95,6 +126,44 @@ VOID HandleRemoveButton()
 	ExitProcess(0);
 }
 
+void ShowLicenseDialog()
+{
+	HMODULE hModule = GetModuleHandle(NULL);
+	HRSRC hRes = FindResource(hModule, MAKEINTRESOURCE(IDR_LICENSE_TXT), RT_RCDATA);
+	if (!hRes)
+	{
+		MessageBox(NULL, "Resource not found", "Error", MB_OK | MB_ICONERROR);
+		return;
+	}
+
+	HGLOBAL hResData = LoadResource(NULL, hRes);
+	if (!hResData)
+	{
+		MessageBox(NULL, "Resource failed to load", "Error", MB_OK | MB_ICONERROR);
+		return;
+	}
+
+	DWORD resSize = SizeofResource(NULL, hRes);
+	void *pRes = LockResource(hResData);
+	if (!pRes)
+	{
+		MessageBox(NULL, "Resource failed to lock", "Error", MB_OK | MB_ICONERROR);
+		return;
+	}
+
+	char *licenseText = (char *)malloc(resSize + 1);
+	if (!licenseText)
+	{
+		MessageBox(NULL, "Memory allocation failed", "Error", MB_OK | MB_ICONERROR);
+		return;
+	}
+
+	memcpy(licenseText, pRes, resSize);
+	licenseText[resSize] = '\0';
+	MessageBoxA(hwnd, licenseText, "About", MB_OK);
+	free(licenseText);
+}
+
 LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
 	switch (msg)
@@ -112,6 +181,26 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 		case 3:
 			HandleRemoveButton();
 			break;
+		case IDM_VIEW_LOG:
+			ShellExecute(NULL, "open", "C:\\windows\\notepad.exe", logFilePath, NULL, SW_SHOW);
+			break;
+		case IDM_HELP_DOCUMENTATION:
+			ShellExecute(NULL, "open", "https://enderice2.github.io/rpc-bridge/index.html", NULL, NULL, SW_SHOWNORMAL);
+			break;
+		case IDM_HELP_LICENSE:
+			ShowLicenseDialog();
+			break;
+		case IDM_HELP_ABOUT:
+		{
+			char msg[256];
+			sprintf(msg, "rpc-bridge v%s\n\n"
+						 "Simple bridge that allows you to use Discord Rich Presence with Wine games/software.\n\n"
+						 "Created by EnderIce2\n\n"
+						 "Licensed under the MIT License",
+					VER_VERSION_STR);
+			MessageBox(NULL, msg, "About", MB_OK);
+			break;
+		}
 		default:
 			break;
 		}
@@ -124,6 +213,12 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 		PostQuitMessage(0);
 		ExitProcess(0);
 		break;
+	case WM_CTLCOLORSTATIC:
+	{
+		HDC hdcStatic = (HDC)wParam;
+		SetBkMode(hdcStatic, TRANSPARENT);
+		return (INT_PTR)(HBRUSH)GetStockObject(NULL_BRUSH);
+	}
 	default:
 		return DefWindowProc(hwnd, msg, wParam, lParam);
 	}
@@ -132,16 +227,9 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 
 VOID SetButtonStyles(INT *btnStartStyle, INT *btnRemoveStyle, INT *btnInstallStyle)
 {
-	*btnStartStyle = WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON;
+	*btnStartStyle = WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_TABSTOP;
-	*btnRemoveStyle = WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON;
+	*btnRemoveStyle = WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_TABSTOP;
-	*btnInstallStyle = WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON;
+	*btnInstallStyle = WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON | WS_TABSTOP;
-
-	if (!IsLinux)
-	{
-		*btnInstallStyle |= WS_DISABLED;
-		*btnRemoveStyle |= WS_DISABLED;
-		return;
-	}
 
 	SC_HANDLE hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
 	SC_HANDLE schService = OpenService(hSCManager, "rpc-bridge", SERVICE_START | SERVICE_QUERY_STATUS);
@@ -160,16 +248,13 @@ VOID SetButtonStyles(INT *btnStartStyle, INT *btnRemoveStyle, INT *btnInstallSty
 			*btnStartStyle |= WS_DISABLED;
 	}
 	else
-	{
-		*btnStartStyle |= WS_DISABLED;
 		*btnRemoveStyle |= WS_DISABLED;
-	}
 
 	CloseServiceHandle(schService);
 	CloseServiceHandle(hSCManager);
 }
 
-int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
+int WINAPI __WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 					 LPSTR lpCmdLine, int nCmdShow)
 {
 	INT btnStartStyle, btnRemoveStyle, btnInstallStyle;
@@ -193,7 +278,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 
 	assert(RegisterClassEx(&wc));
 
-	hwnd = CreateWindowEx(WS_EX_CLIENTEDGE,
+	hwnd = CreateWindowEx(WS_EX_WINDOWEDGE,
 						  szClassName,
 						  "Discord RPC Bridge",
 						  WS_OVERLAPPEDWINDOW & ~WS_THICKFRAME,
@@ -202,40 +287,64 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 						  400, 150,
 						  NULL, NULL, hInstance, NULL);
 
-	CreateWindow("STATIC", "Do you want to start, install or remove the bridge?",
+	HICON hIcon = LoadIcon(hInstance, "IDI_ICON_128");
+	SendMessage(hwnd, WM_SETICON, ICON_BIG, (LPARAM)hIcon);
+
+	HWND hLbl4 = CreateWindowEx(WS_EX_TRANSPARENT,
+								"STATIC", "Do you want to start, install or remove the bridge?",
 								WS_CHILD | WS_VISIBLE | SS_CENTER,
-				 0, 0, 400, 50,
+								0, 15, 400, 25,
 								hwnd, (HMENU)4, hInstance, NULL);
 
-	CreateWindow("BUTTON", "Start",
+	HWND hbtn1 = CreateWindow("BUTTON", "&Start",
 							  btnStartStyle,
-				 50, 50, 100, 30,
+							  40, 60, 100, 30,
 							  hwnd, (HMENU)1, hInstance, NULL);
 
-	CreateWindow("BUTTON", "Install",
+	HWND hbtn2 = CreateWindow("BUTTON", "&Install",
 							  btnInstallStyle,
-				 150, 50, 100, 30,
+							  150, 60, 100, 30,
 							  hwnd, (HMENU)2, hInstance, NULL);
 
-	CreateWindow("BUTTON", "Remove",
+	HWND hbtn3 = CreateWindow("BUTTON", "&Remove",
 							  btnRemoveStyle,
-				 250, 50, 100, 30,
+							  260, 60, 100, 30,
 							  hwnd, (HMENU)3, hInstance, NULL);
 
+	HMENU hMenu = LoadMenu(hInstance, MAKEINTRESOURCE(IDR_MAINMENU));
+	SetMenu(hwnd, hMenu);
+
+	HDC hDC = GetDC(hwnd);
+	int nHeight = -MulDiv(11, GetDeviceCaps(hDC, LOGPIXELSY), 72);
+
+	HFONT hFont = CreateFont(nHeight, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, ANSI_CHARSET,
+							 OUT_TT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
+							 DEFAULT_PITCH | FF_DONTCARE, TEXT("Segoe UI"));
+	ReleaseDC(hwnd, hDC);
+
+	SendMessage(hwnd, WM_SETFONT, hFont, TRUE);
+	SendMessage(hLbl4, WM_SETFONT, hFont, TRUE);
+	SendMessage(hbtn1, WM_SETFONT, hFont, TRUE);
+	SendMessage(hbtn2, WM_SETFONT, hFont, TRUE);
+	SendMessage(hbtn3, WM_SETFONT, hFont, TRUE);
+
 	ShowWindow(hwnd, nCmdShow);
 	UpdateWindow(hwnd);
 
 	MSG msg;
 	while (GetMessage(&msg, NULL, 0, 0) > 0)
+	{
+		if (!IsDialogMessage(hwnd, &msg))
 		{
 			TranslateMessage(&msg);
 			DispatchMessage(&msg);
 		}
+	}
 	return msg.wParam;
 }
 
 void CreateGUI()
 {
 	ShowWindow(GetConsoleWindow(), SW_MINIMIZE);
-	ExitProcess(WinMain(GetModuleHandle(NULL), NULL, GetCommandLine(), SW_SHOWNORMAL));
+	ExitProcess(__WinMain(GetModuleHandle(NULL), NULL, GetCommandLine(), SW_SHOWNORMAL));
 }

kvm.c

@@ -0,0 +1,100 @@
+#if defined(__linux__)
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <signal.h>
+
+void transferData(int fromSock, int toSock)
+{
+	char buffer[256];
+	ssize_t bytesRead;
+	while ((bytesRead = read(fromSock, buffer, sizeof(buffer))) > 0)
+	{
+		write(toSock, buffer, bytesRead);
+	}
+}
+
+int connectToSocket(const char *socketPath)
+{
+	int sock = socket(AF_UNIX, SOCK_STREAM, 0);
+	assert(sock >= 0);
+
+	struct sockaddr_un addr;
+	memset(&addr, 0, sizeof(addr));
+	addr.sun_family = AF_UNIX;
+	strncpy(addr.sun_path, socketPath, sizeof(addr.sun_path) - 1);
+
+	int result = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
+	assert(result == 0);
+
+	return sock;
+}
+
+int kvmSock;
+int discordSock;
+void sigintHandler(int sig)
+{
+	close(kvmSock);
+	close(discordSock);
+	exit(0);
+}
+
+int main()
+{
+	signal(SIGINT, sigintHandler);
+
+	const char *kvmSocketPath = "/tmp/kvm-rpc-bridge";
+	const char *discordSocketPath = getenv("XDG_RUNTIME_DIR");
+	if (discordSocketPath == NULL)
+	{
+		fprintf(stderr, "XDG_RUNTIME_DIR environment variable not set\n");
+		return EXIT_FAILURE;
+	}
+	char discordSocketFullPath[256];
+	snprintf(discordSocketFullPath, sizeof(discordSocketFullPath), "%s/discord-ipc-0", discordSocketPath);
+
+	printf("Trying Discord socket at %s\n", discordSocketFullPath);
+	discordSock = connectToSocket(discordSocketFullPath);
+	printf("Connected to Discord socket successfully\n");
+
+	// Connect to KVM socket
+	printf("Trying KVM socket at %s\n", kvmSocketPath);
+	kvmSock = connectToSocket(kvmSocketPath);
+
+	// Read specific message from KVM and send confirmation
+	const char kvmExpectedMsg[] = {0x69, 0x15, 0xBB};
+	const char kvmResponseMsg[] = {0x6E, 0x1D, 0xB4};
+
+	char buffer[3];
+	ssize_t bytesRead = read(kvmSock, buffer, sizeof(buffer));
+	printf("Read %ld bytes from KVM (%x %x %x)\n", bytesRead, buffer[0], buffer[1], buffer[2]);
+	assert(bytesRead == sizeof(kvmExpectedMsg));
+	assert(memcmp(buffer, kvmExpectedMsg, sizeof(kvmExpectedMsg)) == 0);
+
+	ssize_t bytesSent = write(kvmSock, kvmResponseMsg, sizeof(kvmResponseMsg));
+	assert(bytesSent == sizeof(kvmResponseMsg));
+	printf("Connected to KVM socket successfully\n");
+
+	// Transfer data between KVM and Discord sockets
+	if (fork() == 0)
+	{
+		// Child process: transfer data from KVM to Discord
+		transferData(kvmSock, discordSock);
+	}
+	else
+	{
+		// Parent process: transfer data from Discord to KVM
+		transferData(discordSock, kvmSock);
+	}
+
+	close(kvmSock);
+	close(discordSock);
+	return 0;
+}
+
+#endif // __linux__

main.c

@@ -3,8 +3,12 @@
 #include <assert.h>
 #include <stdio.h>
 
+#include "bridge.h"
+#include "resource.h"
+
 FILE *g_logFile = NULL;
 BOOL RunningAsService = FALSE;
+char *logFilePath = NULL;
 
 void CreateGUI();
 void CreateBridge();
@@ -13,7 +17,7 @@ void ServiceMain(int argc, char *argv[]);
 void InstallService(int ServiceStartType, LPCSTR Path);
 char *native_getenv(const char *name);
 void RemoveService();
-extern BOOL IsLinux;
+extern OS_INFO OSInfo;
 
 LPTSTR GetErrorMessage()
 {
@@ -55,11 +59,8 @@ void DetectWine()
 	}
 
 	if (!GetProcAddress(hNTdll, "wine_get_version"))
-	{
+		return;
-		MessageBox(NULL, "This program is only intended to run under Wine.",
+	OSInfo.IsWine = TRUE;
-				   GetErrorMessage(), MB_OK | MB_ICONINFORMATION);
-		ExitProcess(1);
-	}
 
 	static void(CDECL * wine_get_host_version)(const char **sysname, const char **release);
 	wine_get_host_version = (void *)GetProcAddress(hNTdll, "wine_get_host_version");
@@ -72,14 +73,12 @@ void DetectWine()
 	{
 		int result = MessageBox(NULL, "This program is designed for Linux and macOS only!\nDo you want to proceed?",
 								NULL, MB_YESNO | MB_ICONQUESTION);
-		if (result == IDYES)
+		if (result == IDNO)
-			return;
-		else if (result == IDNO)
 			ExitProcess(1);
 	}
 
-	IsLinux = strcmp(__sysname, "Linux") == 0;
+	OSInfo.IsLinux = strcmp(__sysname, "Linux") == 0;
-	printf("Running on %s\n", __sysname);
+	OSInfo.IsDarwin = strcmp(__sysname, "Darwin") == 0;
 }
 
 void print(char const *fmt, ...)
@@ -114,14 +113,13 @@ void HandleArguments(int argc, char *argv[])
 	}
 	else if (strcmp(argv[1], "--steam") == 0)
 	{
+		assert(OSInfo.IsWine == TRUE);
+
 		/* All this mess just so when you close the game,
 			it automatically closes the bridge and Steam
 			will not say that the game is still running. */
 
 		print("Running as Steam\n");
-		if (IsLinux == FALSE)
-			CreateBridge();
-
 		if (argc > 2)
 		{
 			if (strcmp(argv[2], "--no-service") == 0)
@@ -272,32 +270,40 @@ void HandleArguments(int argc, char *argv[])
 		CreateBridge();
 		ExitProcess(0);
 	}
+	else if (strcmp(argv[1], "--version") == 0)
+	{
+		printf("%s\n", VER_VERSION_STR);
+		ExitProcess(0);
+	}
 	else if (strcmp(argv[1], "--help") == 0)
 	{
-		printf("Usage:\n");
+		printf("Usage:\n"
-		printf("  %s [args]\n\n", argv[0]);
+			   "  %s [args]\n"
-
+			   "\n"
-		printf("Arguments:\n");
+			   "Arguments:\n"
-		printf("  --help         Show this help\n\n");
+			   "  --help         Show this help\n"
-
+			   "\n"
-		printf("  --install      Install service\n");
+			   "  --version      Show version\n"
-		printf("        This will copy the binary to C:\\windows\\bridge.exe and register it as a service\n\n");
+			   "\n"
-
+			   "  --install      Install service\n"
-		printf("  --uninstall    Uninstall service\n");
+			   "        This will copy the binary to C:\\windows\\bridge.exe and register it as a service\n"
-		printf("        This will remove the service and delete C:\\windows\\bridge.exe\n\n");
+			   "\n"
-
+			   "  --uninstall    Uninstall service\n"
-		printf("  --steam        Reserved for Steam\n");
+			   "        This will remove the service and delete C:\\windows\\bridge.exe\n"
-		printf("        This will start the service and exit (used with bridge.sh)\n\n");
+			   "\n"
-
+			   "  --steam        Reserved for Steam\n"
-		printf("  --no-service   Do not run as service\n");
+			   "        This will start the service and exit (used with bridge.sh)\n"
-		printf("        (only for --steam)\n\n");
+			   "\n"
-
+			   "  --no-service   Do not run as service\n"
-		printf("  --service      Reserved for service\n\n");
+			   "        (only for --steam)\n"
-
+			   "\n"
-		printf("  --rpc <dir>    Set RPC_PATH environment variable\n");
+			   "  --service      Reserved for service\n"
-		printf("        This is used to specify the directory where 'discord-ipc-0' is located\n\n");
+			   "\n"
-
+			   "  --rpc <dir>    Set RPC_PATH environment variable\n"
-		printf("Note: If no arguments are provided, the GUI will be shown instead\n");
+			   "        This is used to specify the directory where 'discord-ipc-0' is located\n"
+			   "\n"
+			   "Note: If no arguments are provided, the GUI will be shown instead\n",
+			   argv[0]);
 		ExitProcess(0);
 	}
 }
@@ -305,7 +311,14 @@ void HandleArguments(int argc, char *argv[])
 int main(int argc, char *argv[])
 {
 	DetectWine();
-	char *logFilePath = "C:\\windows\\logs\\bridge.log";
+	if (OSInfo.IsWine)
+		logFilePath = "C:\\windows\\logs\\bridge.log";
+	else
+	{
+		logFilePath = (char *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, MAX_PATH);
+		GetTempPath(MAX_PATH, logFilePath);
+		strcat_s(logFilePath, MAX_PATH, "bridge.log");
+	}
 	g_logFile = fopen(logFilePath, "w");
 	if (g_logFile == NULL)
 	{
@@ -327,3 +340,8 @@ int main(int argc, char *argv[])
 	fclose(g_logFile);
 	ExitProcess(0);
 }
+
+int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
+{
+	return main(__argc, __argv);
+}

mkdocs.yml

@@ -0,0 +1,76 @@
+site_name: rpc-bridge
+repo_url: https://github.com/EnderIce2/rpc-bridge
+repo_name: EnderIce2/rpc-bridge
+theme:
+  name: material
+  features:
+    - content.code.copy
+    - content.tabs.link
+    - navigation.tabs
+    - navigation.top
+    - navigation.footer
+    - toc.integrate
+    - content.tooltips
+  palette:
+    - media: "(prefers-color-scheme)"
+      toggle:
+        icon: material/weather-sunny
+        name: Switch to light mode
+    - media: "(prefers-color-scheme: dark)"
+      scheme: slate
+      primary: black
+      accent: indigo
+      toggle:
+        icon: material/brightness-4
+        name: Switch to system preference
+    - media: "(prefers-color-scheme: light)"
+      scheme: default
+      primary: indigo
+      accent: indigo
+      toggle:
+        icon: material/brightness-7
+        name: Switch to dark mode
+  font:
+    text: Roboto
+    code: Roboto Mono
+  favicon: assets/favicon.png
+  logo: assets/favicon.png
+  icon:
+    logo: logo
+    admonition:
+      note: octicons/tag-16
+      abstract: octicons/checklist-16
+      info: octicons/info-16
+      tip: octicons/squirrel-16
+      success: octicons/check-16
+      question: octicons/question-16
+      warning: octicons/alert-16
+      failure: octicons/x-circle-16
+      danger: octicons/zap-16
+      bug: octicons/bug-16
+      example: octicons/beaker-16
+      quote: octicons/quote-16
+markdown_extensions:
+  - pymdownx.highlight:
+      anchor_linenums: true
+      line_spans: __span
+      pygments_lang_class: true
+  - admonition
+  - pymdownx.details
+  - pymdownx.inlinehilite
+  - pymdownx.snippets
+  - footnotes
+  - attr_list
+  - pymdownx.critic
+  - pymdownx.caret
+  - pymdownx.keys
+  - pymdownx.mark
+  - pymdownx.tilde
+  - pymdownx.tabbed:
+      alternate_style: true
+plugins:
+  - offline
+nav:
+  - Home: index.md
+  - Installation: installation.md
+  - Usage: usage.md

resource.h

@@ -0,0 +1,9 @@
+#define IDR_MAINMENU 101
+#define IDR_LICENSE_TXT 102
+#define IDM_HELP_DOCUMENTATION 40001
+#define IDM_HELP_LICENSE 40002
+#define IDM_HELP_ABOUT 40003
+#define IDM_VIEW_LOG 40004
+
+#define VER_VERSION 1, 1, 0, 0
+#define VER_VERSION_STR "1.1\0"

service.c

@@ -8,7 +8,6 @@ SERVICE_STATUS_HANDLE g_StatusHandle = NULL;
 void print(char const *fmt, ...);
 void CreateBridge();
 LPTSTR GetErrorMessage();
-extern BOOL IsLinux;
 
 void WINAPI ServiceCtrlHandler(DWORD CtrlCode)
 {
@@ -88,14 +87,6 @@ void InstallService(int ServiceStartType, LPCSTR Path)
 {
 	print("Registering service\n");
 
-	if (IsLinux == FALSE)
-	{
-		/* FIXME: I don't know how to get the TMPDIR without getenv */
-		MessageBox(NULL, "Registering as a service is not supported on macOS at the moment.",
-				   "Unsupported", MB_OK | MB_ICONINFORMATION);
-		ExitProcess(1);
-	}
-
 	SC_HANDLE schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CREATE_SERVICE);
 	if (schSCManager == NULL)
 	{